Waterproof and dustproof movable cover plate structure of automobile door lock

Abstract

The invention discloses a waterproof and dustproof movable cover plate structure for an automobile door lock, and relates to the technical field of automobile locks, the waterproof and dustproof movable cover plate structure comprises a stay wire shell and a door lock opening stay wire opening hole reserved in the stay wire shell, a lock body plastic shell is mounted on the stay wire shell, and the lock body plastic shell comprises a connecting part, a thin wall and a movable cover plate; the lock body plastic shell is integrally formed, and the connecting part and the movable cover plate are flexibly connected through a thin wall. The waterproof and dustproof movable cover plate structure of the automobile door lock has the advantages of being simple, compact, low in cost and capable of conveniently opening and closing a door lock opening stay wire opening hole, the lock body plastic shell is integrally formed and designed by the connecting part, the thin wall and the movable cover plate, and after the lock body plastic shell is installed, the lock body plastic shell can be conveniently opened and closed. The integrated structural design has the advantages of being waterproof and dustproof. Compared with a cover plate installed through a loose-leaf function in the prior art, the cover plate has the remarkable advantages of being low in cost, good in installation process, waterproof and dustproof.

Description

Technical Field

[0001] The invention relates to the technical field of automobile locks, and in particular to a waterproof and dustproof movable cover plate structure for an automobile door lock. Background Art

[0002] With the development of the automobile market, the requirements for the automation and intelligence of automobile opening and closing systems are gradually increasing, and the requirements for waterproof and dustproof of the opening mechanism of the side door are also gradually increasing. In the prior art, the plastic shell of the lock body at the opening wire will have a hole to ensure the assembly of the opening wire; some structures will add a cover plate with a loose-leaf function, but the above-mentioned cover plate and hole solution cannot be waterproof and dustproof, which will reduce the life and performance of the lock body; at the same time, the cover plate with a loose-leaf function has complex parts and requires additional assembly, which is costly. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art that the cover with hinge function is not waterproof and dustproof and the parts are complex and require additional assembly, and to propose a waterproof and dustproof movable cover structure for a car door lock.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A waterproof and dustproof movable cover plate structure for a car door lock comprises a wire pull housing and a door lock opening wire pull hole reserved thereon, a lock body plastic housing is mounted on the wire pull housing, the lock body plastic housing comprises a connecting portion, a thin wall and a movable cover plate, the lock body plastic housing is integrally formed, the connecting portion and the movable cover plate are softly connected via a thin wall; the movable cover plate blocks or opens the door lock opening wire pull hole.

[0006] Preferably, the thickness of the thin wall is 0.3 mm to 0.5 mm.

[0007] Preferably, a limiting connecting rib is provided on the connecting portion, an end of the limiting connecting rib away from the connecting portion is located within the width of the thin wall, and the movable cover plate bends and rotates around an end of the limiting connecting rib away from the connecting portion.

[0008] Preferably, the movable cover plate is deflected at an angle a° relative to the connecting portion, and a is greater than 70°.

[0009] Preferably, a side of the movable cover plate away from the wire pulling housing is a planar structure, and the planar structure is flush with an outer side wall of the connecting portion.

[0010] Preferably, the movable cover plate and the wire pulling housing are connected via at least two groups of clamping structures.

[0011] Preferably, the clamping structure comprises a concave portion and a convex portion, and the convex portion is clamped in the concave portion.

[0012] Preferably, the recessed portion is a bayonet structure, and an outwardly convex carrying portion is provided at the opening of the bayonet structure, and the carrying portion is U-shaped;

[0013] The convex portion is a wedge-shaped structure.

[0014] Preferably, a limiting protrusion is provided on the outer wall of the wire pulling housing, and the limiting protrusion is used to limit the rotation of the outer wall of the edge of the movable cover plate.

[0015] Preferably, a drain port is provided on the lock body plastic shell.

[0016] The beneficial effects of the present invention are:

[0017] The waterproof and dustproof movable cover plate structure of the automobile door lock involved in the present invention has the advantages of being simple, compact and low in cost, and can realize the advantages of conveniently opening and closing the door lock opening wire opening hole, and the lock body plastic shell is designed by integrally forming the connecting part, the thin wall and the movable cover plate. After the lock body plastic shell is installed, the integrated structural design has the advantages of being waterproof and dustproof. Compared with the cover plate installed by the loose-leaf function in the prior art, it has significant advantages in cost, installation process and waterproof and dustproof. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a waterproof and dustproof movable cover plate structure for a car door lock proposed by the present invention;

[0019] Figure 2 A side view of a waterproof and dustproof movable cover plate structure for a car door lock proposed by the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 A diagram showing the bending and flipping state of a movable cover plate in a waterproof and dustproof movable cover plate structure for a car door lock proposed by the present invention.

[0022] In the figure: 1. Plastic shell of lock body; 10. Connecting part; 100. Position-limiting connecting rib; 11. Thin wall; 12. Movable cover plate; 13. Drainage outlet; 2. Pull wire shell; 20. Pull wire opening hole for door lock; 21. Position-limiting protrusion; 3. Snap-fit ​​structure; 30. Concave part; 31. Protrusion. DETAILED DESCRIPTION

[0023] Reference Figure 1-Figure 4 The lock body plastic shell 1 includes a connecting portion 10, a thin wall 11 and a movable cover plate 12. The lock body plastic shell 1 is integrally formed. Specifically, the connecting portion 10, the thin wall 11 and the movable cover plate 12 are integrally formed.

[0024] The connecting portion 10 is a plastic plate structure and is mounted on the wire pulling housing 2 by screws. Furthermore, screw mounting holes are provided on both the connecting portion 10 and the wire pulling housing 2.

[0025] The connection between the connecting portion 10 and the movable cover plate 12 is a thin wall 11, wherein the thickness of the thin wall 11 is 0.3 mm to 0.5 mm, and below the thin wall 11 is the movable cover plate 12. Further, the movable cover plate 12 is located at the bottom of the door lock body installation position, and further, the movable cover plate 12 is arranged at the door lock opening wire opening 20 position on the wire housing 2, and is used to block or open the door lock opening wire opening 20.

[0026] In this embodiment, the thin wall 11 structure utilizes the flexibility of plastic, so the movable cover plate 12 rotates around the thin wall 11, and the rotation state can be divided into an open state or a blocked state of the door lock opening wire opening 20.

[0027] Furthermore, when the movable cover plate 12 is buckled at the opening of the door lock opening wire opening hole 20, the movable cover plate 12 blocks the door lock opening wire opening hole 20, and the door lock opening wire opening hole 20 is in a blocked state. In this state, the outer surface of the movable cover plate 12 and the outer surface of the connecting part 10 are in the same plane, which does not increase the space of the lock body and does not affect the matching space of the customer. At this time, the opening wire is inside the lock body, and the movable cover plate 12 fills the gap in the assembly space, that is, fills the door lock opening wire opening hole 20, which can prevent water and dust from entering the lock body and protect the life and performance of the internal movement mechanism.

[0028] When the movable cover plate 12 is separated from the opening of the door lock opening wire opening hole 20, the movable cover plate 12 opens the door lock opening wire opening hole 20, and the door lock opening wire opening hole 20 is in an open state, which is used for detecting the door lock function and installing the door lock opening wire. In this state, an installation space of not less than a° can be provided, wherein a° is defined as the deflection angle of the movable cover plate 12 relative to the connecting part 10. Preferably, the value of a is 70 or above.

[0029] In some embodiments, reference Figure 1 A limiting connecting rib 100 is provided on the connecting portion 10 , an end of the limiting connecting rib 100 away from the connecting portion 10 is located within the width range of the thin wall 11 , and the movable cover plate 12 bends and rotates around the end of the limiting connecting rib 100 away from the connecting portion 10 .

[0030] Furthermore, the bending and rotating position of the movable cover plate 12 on the thin wall 11 can be changed by changing the position of the limiting connecting rib 100 away from one end of the connecting portion 10 .

[0031] The movable cover plate 12 of the present structure is provided with two or more sets of clamping structures 3, which are used for clamping the movable cover plate 12 and the wire housing 2 when the door lock opening wire opening hole 20 is blocked. Its form includes but is not limited to the concave part 30 on the movable cover plate 12 corresponding to the convex part 31 on the wire housing 2; or the convex part 30 on the movable cover plate 12 corresponds to the concave part 31 on the wire housing 2.

[0032] Reference Figure 3 The concave portion 30 is a bayonet structure, and an outwardly convex mounting portion is provided at the opening of the bayonet structure, and the mounting portion is U-shaped. In addition, the convex portion 31 is a wedge-shaped structure. When the inclined surface of the convex portion 31 of the wedge-shaped structure hits the horizontal end of the U-shaped mounting portion, the mounting portion deforms, causing the convex portion 31 of the wedge-shaped structure to pass through the mounting portion, and the convex portion 31 of the wedge-shaped structure is located in the bayonet structure, and the horizontal surface end of the convex portion 31 of the wedge-shaped structure is mounted on the horizontal surface end of the U-shaped mounting portion.

[0033] In some embodiments, the clamping structure 3 is arranged in parallel to the outer edge of the movable cover plate 12, away from the thin wall 11. The clamping structure 3 prevents the movable cover plate 12 from escaping from the wire pulling housing 2.

[0034] The movable cover plate 12 is provided with an edge end, preferably, the edge end is located between the clamping structures 3. Further, the wire housing 2 is provided with a limiting protrusion 21, which is used to prevent the movable cover plate 12 from continuing to move in the direction of the wire housing 2 when subjected to external force, and to limit the movable cover plate 12 to a fixed position, so as to avoid problems such as position deviation, abnormal knocking sound, and the movable cover plate 12 coming off. Preferably, the edge 103 is located between two sets of clamping structures 101.

[0035] The lock body plastic housing 1 of this structure has a drain port 13. Specifically, a sufficient gap is maintained between the drain port 13 and the wire housing 2, so that water or other liquid substances that enter the lock body under abnormal conditions can be discharged in time.

[0036] Preferably, the drain outlet 13 is arranged at the door lock installation position, closer to the rear of the vehicle, in order to keep the drain outlet 13 at the lowest point of the semi-enclosed space of the lock body to facilitate the complete discharge of water, especially when the installation angle of the rear door of the passenger car is relatively large.

[0037] Finally, the drainage port 13 is preferably disposed on the lock body plastic housing 1 on the connecting portion 10 , on one side of the movable cover plate 12 .

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof and dustproof movable cover structure for a car door lock, comprising a wire housing (2) and a door lock opening wire opening hole (20) reserved thereon, characterized in that: A lock body plastic shell (1) is installed on the wire pull shell (2), and the lock body plastic shell (1) comprises a connecting portion (10), a thin wall (11) and a movable cover plate (12). The lock body plastic shell (1) is integrally formed, and the connecting portion (10) and the movable cover plate (12) are softly connected via the thin wall (11); the movable cover plate (12) blocks or opens a door lock opening wire pull hole (20).

2. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The thickness of the thin wall (11) is 0.3 mm to 0.5 mm.

3. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The connecting portion (10) is provided with a limiting connecting rib (100), one end of the limiting connecting rib (100) away from the connecting portion (10) is located within the width range of the thin wall (11), and the movable cover plate (12) is bent and rotated around one end of the limiting connecting rib (100) away from the connecting portion (10).

4. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The movable cover plate (12) is deflected at an angle a° relative to the connecting portion (10), and a is greater than 70°.

5. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The side of the movable cover plate (12) away from the wire pulling housing (2) is a planar structure, and the planar structure is flush with the outer side wall of the connecting portion (10).

6. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The movable cover plate (12) and the wire-drawing housing (2) are connected via at least two groups of clamping structures (3).

7. The waterproof and dustproof movable cover structure of a car door lock according to claim 6, characterized in that: The clamping structure (3) comprises a recessed portion (30) and a convex portion (31), and the convex portion (31) is clamped in the recessed portion (30).

8. The waterproof and dustproof movable cover structure of a car door lock according to claim 7, characterized in that: The recess (30) is a bayonet structure, and an outwardly convex mounting portion is provided at the opening of the bayonet structure, and the mounting portion is U-shaped; The convex portion (31) is a wedge-shaped structure.

9. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The outer wall of the wire pulling housing (2) is provided with a limiting protrusion (21), and the limiting protrusion (21) is used to limit the rotation of the outer wall of the edge of the movable cover plate (12).

10. The waterproof and dustproof movable cover structure of a car door lock according to claim 1, characterized in that: The lock body plastic shell (1) is provided with a water drain port (13).

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